Description of document versions ==================================== .. csv-table:: "**Version** **Aster**", "**Author (s)** **Organization (s)**", "**Description of changes**" "11.3", "S. Michel-Ponnelle EDF -R&D/ AMA ", "Initial text" "12.2", "S. Michel-Ponnelle EDF -R&D/ AMA ", "Secant matrix addition" "13.3", "S. Michel-Ponnelle EDF -R&D/ AMA ", "Update of test cases and section on the limitations of the law"